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IBM z/OS UNIX BPXPRMxx security parameters in PARMLIB must be properly specified.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-223631 | ACF2-US-000160 | SV-223631r533198_rule | Medium |
| Description |
|---|
| Configuration settings are the set of parameters that can be changed in hardware, software, or firmware components of the system that affect the security posture and/or functionality of the system. Security-related parameters are those parameters impacting the security state of the system, including the parameters required to satisfy other security control requirements. Security-related parameters include, for example: registry settings; account, file, directory permission settings; and settings for functions, ports, protocols, services, and remote connections. |
| STIG | Date |
|---|---|
| IBM z/OS ACF2 Security Technical Implementation Guide | 2021-03-29 |
Details
| Check Text ( C-25304r504851_chk ) |
|---|
| Refer to the proper BPXPRMxx member in SYS1.PARMLIB. If the required parameter keywords and values are defined as detailed below, this is not a finding. Parameter Keyword Value SUPERUSER BPXROOT TTYGROUP TTY STEPLIBLIST /etc/steplib USERIDALIASTABLE Will not be specified. ROOT SETUID will be specified MOUNT NOSETUID SETUID (for Vendor-provided files)SECURITY STARTUP_PROC OMVS |
| Fix Text (F-25292r504852_fix) |
|---|
| Define the settings in PARMLIB member BPXPRMxx for z/OS UNIX security parameters values to conform to the specifications below: Parameter Keyword Value SUPERUSER BPXROOT TTYGROUP TTY STEPLIBLIST /etc/steplib USERIDALIASTABLE Will not be specified. ROOT SETUID will be specified MOUNT NOSETUIDSETUID (for Vendor-provided files)SECURITY STARTUP_PROC OMVS |